Computing the probability between sample mean

Assignment Help Basic Statistics
Reference no: EM1392382

A normal population has a mean of 75 and a standard deviation of 5. You select a sample of 40. Compute the probability that  the sample mean is Between 74 and 76.

Reference no: EM1392382

Questions Cloud

Calculate the control limits for a c-chart : Calculate the control limits for a c chart when Ubar = 3.0%, n = 60, and you collect one sample per hour for 40 hours of production. (2 sets of control limits required, x bar and range)
Develop a strategic plan - health assessments : What are your thoughts about the assessment process? How well is it working? What are specifc strengths of the process from your perspectives? Any barriers or difficulties to overcome?
Relationship between elements and atoms : Explain the arrangement within energy levels of the six electrons of an atom of carbon and discuss the relationship between elements and atoms?
Simulation of normal random variable : Simulate 50 observations from a normal distribution with mean 0 and standard deviation 1. make a normal plot.
Computing the probability between sample mean : A normal population has a mean of 75 and a standard deviation of 5. You select a sample of 40. Compute the probability that  the sample mean is Between 74 and 76.
What is the maximum number of defectives allowed : What is the maximum number of defectives allowed in the second sample for the lot to be accepted?
How public policy decisions influence receipt of revenues : Using local government's annual budgeting documents, include the following into document. Explain restrictions which are (or could be) placed on those revenues.
Multiple locations that would like their professionals : For firms that have multiple locations that would like their professionals from different teams to be able to collaborate efficiently
Standard deviation-normal distribution and z-scores : The accounting department at Weston Materials, Inc., national manufacturer of unattached garages, reports that it takes two construction workers mean of 32 hours and standard deviation of 2 hours to erect the Red Barn model.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Commercials to maximize the estimated number

How should the candidate purchase the five commercials to maximize the estimated number of additional voters?

  Determining standard deviation of number of houses

Assume you choose 20 houses at random. On average, how many houses of twenty would you expect to have DVD? Determine standard deviation of number of houses with DVD?

  Evalauate the variance of their salaries

A random sample of students is selected, and each one is asked to try first brand A and then brand B, or vice versa with the order determined at random.

  I want to construct a confidence interval

A radio station wants to know if residents in their area are in favor of a proposed tax increase. They invite listeners to call in to respond to the poll. 645 of the 800 who responded were against the tax.

  Computing the mean for the given data

Determine the mean number of times the machine was used per day.

  Finding test of hypothesis on each of regression coefficient

Carry out a test of hypothesis on each of regression coefficients. Could you delete any of the variables?

  Recognizing potential threats to external validity

Recognize and explain potential threats (up to 3) to external validity.

  Probability using continuous frequency distribution

For an arch chosen at random in Arches National Park, use the preceding information to estimate the probability that the height of the arch poening is:

  Linear equation which gives the population from data

Find out a linear equation in the form P = mt + b (y = mx + b) that gives the population, P, t years from 2010.

  Sample of nine boxes of cake mix

A manufacturer wants to increase the shelf life of a line of cake mixes. past records indicate that the average shelf life of the mix is 216 days. after a revised mix has been developed, a sample of nine boxes of cake mix gave these shelf lives (i..

  Find the probability that the response time

The response time for Denver police to respond to emergency calls is 8.4 minutes with a standard deviation 1.7 find the probability that the response time for a call between 5 and 10 minutes.

  Determining relative frequency and cumulative frequencies

Determine relative frequency of X=4? Generate the cumulative frequencies.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd